Description for figure 2.1

Representation of path between interviewer’s tasks.   Survey steps are illustrated from target population to sampling frame to sample to sampled individuals (with contactability and cooperation) to respondents to postsurvey adjustment to survey statistics. Interviewer NRS collects addresses for sample frame, selects sampled individuals and elicits cooperation; Interviewer ARS selects sampled individuals and elicits cooperation; and Interviewer PRS elicits cooperation.